How many pairs of prime numbers are there to express 18 as the sum of two prime numbers?

Asked by Topperlearning User | 21st Apr, 2014, 03:15: PM

Expert Answer:

Two pairs of prime numbers exist:

5 + 13 = 18 and 7 + 11 = 18.

Answered by  | 21st Apr, 2014, 05:15: PM